Well, turns out Perry had another trick up her sleeve, switching outfits mid-event. Perry's second act was a hamburger costume, complete with a lettuce dress and a toothpick hat.

Image: Getty Images for The Met Museum/

It's only one of the most sought-after high fashion events in the world, but OK. Here's a video of her changing into the outfit in what appears to be the Met bathrooms — and yes, that's Jennifer Lopez wandering past.

You can't say the outfit has exactly gone down well with everyone. But it's the kind of thing you'd expect from Perry, to say the least — among the pop star's most outrageous outfits, her colossal winged outfit from the 2018 Met Gala is a (somewhat less cartoonish) highlight.